usb_controller.h revision 190754
1/* $FreeBSD: head/sys/dev/usb/usb_controller.h 190754 2009-04-06 00:22:49Z thompsa $ */ 2/*- 3 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#ifndef _USB2_CONTROLLER_H_ 28#define _USB2_CONTROLLER_H_ 29 30/* defines */ 31 32#define USB_BUS_DMA_TAG_MAX 8 33 34/* structure prototypes */ 35 36struct usb2_bus; 37struct usb2_page; 38struct usb2_pipe; 39struct usb2_page_cache; 40struct usb2_setup_params; 41struct usb2_hw_ep_profile; 42struct usb2_fs_isoc_schedule; 43struct usb2_config_descriptor; 44struct usb2_endpoint_descriptor; 45 46/* typedefs */ 47 48typedef void (usb2_bus_mem_sub_cb_t)(struct usb2_bus *bus, struct usb2_page_cache *pc, struct usb2_page *pg, usb2_size_t size, usb2_size_t align); 49typedef void (usb2_bus_mem_cb_t)(struct usb2_bus *bus, usb2_bus_mem_sub_cb_t *scb); 50 51/* 52 * The following structure is used to define all the USB BUS 53 * callbacks. 54 */ 55struct usb2_bus_methods { 56 57 /* USB Device and Host mode - Mandatory */ 58 59 void (*pipe_init) (struct usb2_device *udev, struct usb2_endpoint_descriptor *edesc, struct usb2_pipe *pipe); 60 void (*xfer_setup) (struct usb2_setup_params *parm); 61 void (*xfer_unsetup) (struct usb2_xfer *xfer); 62 void (*get_dma_delay) (struct usb2_bus *, uint32_t *pdelay); 63 void (*device_suspend) (struct usb2_device *udev); 64 void (*device_resume) (struct usb2_device *udev); 65 void (*set_hw_power) (struct usb2_bus *bus); 66 /* 67 * The following flag is set if one or more control transfers are 68 * active: 69 */ 70#define USB_HW_POWER_CONTROL 0x01 71 /* 72 * The following flag is set if one or more bulk transfers are 73 * active: 74 */ 75#define USB_HW_POWER_BULK 0x02 76 /* 77 * The following flag is set if one or more interrupt transfers are 78 * active: 79 */ 80#define USB_HW_POWER_INTERRUPT 0x04 81 /* 82 * The following flag is set if one or more isochronous transfers 83 * are active: 84 */ 85#define USB_HW_POWER_ISOC 0x08 86 /* 87 * The following flag is set if one or more non-root-HUB devices 88 * are present on the given USB bus: 89 */ 90#define USB_HW_POWER_NON_ROOT_HUB 0x10 91 92 /* USB Device mode only - Mandatory */ 93 94 void (*get_hw_ep_profile) (struct usb2_device *udev, const struct usb2_hw_ep_profile **ppf, uint8_t ep_addr); 95 void (*set_stall) (struct usb2_device *udev, struct usb2_xfer *xfer, struct usb2_pipe *pipe); 96 void (*clear_stall) (struct usb2_device *udev, struct usb2_pipe *pipe); 97 98 /* USB Device and Host mode - Optional */ 99 100 void (*roothub_exec) (struct usb2_bus *); 101}; 102 103/* 104 * The following structure is used to define all the USB pipe 105 * callbacks. 106 */ 107struct usb2_pipe_methods { 108 109 /* Mandatory USB Device and Host mode callbacks: */ 110 111 usb2_callback_t *open; 112 usb2_callback_t *close; 113 114 usb2_callback_t *enter; 115 usb2_callback_t *start; 116 117 /* Optional */ 118 119 void *info; 120}; 121 122/* 123 * The following structure keeps information about what a hardware USB 124 * endpoint supports. 125 */ 126struct usb2_hw_ep_profile { 127 uint16_t max_in_frame_size; /* IN-token direction */ 128 uint16_t max_out_frame_size; /* OUT-token direction */ 129 uint8_t is_simplex:1; 130 uint8_t support_multi_buffer:1; 131 uint8_t support_bulk:1; 132 uint8_t support_control:1; 133 uint8_t support_interrupt:1; 134 uint8_t support_isochronous:1; 135 uint8_t support_in:1; /* IN-token is supported */ 136 uint8_t support_out:1; /* OUT-token is supported */ 137}; 138 139/* 140 * The following structure is used when trying to allocate hardware 141 * endpoints for an USB configuration in USB device side mode. 142 */ 143struct usb2_hw_ep_scratch_sub { 144 const struct usb2_hw_ep_profile *pf; 145 uint16_t max_frame_size; 146 uint8_t hw_endpoint_out; 147 uint8_t hw_endpoint_in; 148 uint8_t needs_ep_type; 149 uint8_t needs_in:1; 150 uint8_t needs_out:1; 151}; 152 153/* 154 * The following structure is used when trying to allocate hardware 155 * endpoints for an USB configuration in USB device side mode. 156 */ 157struct usb2_hw_ep_scratch { 158 struct usb2_hw_ep_scratch_sub ep[USB_EP_MAX]; 159 struct usb2_hw_ep_scratch_sub *ep_max; 160 struct usb2_config_descriptor *cd; 161 struct usb2_device *udev; 162 struct usb2_bus_methods *methods; 163 uint8_t bmOutAlloc[(USB_EP_MAX + 15) / 16]; 164 uint8_t bmInAlloc[(USB_EP_MAX + 15) / 16]; 165}; 166 167/* 168 * The following structure is used when generating USB descriptors 169 * from USB templates. 170 */ 171struct usb2_temp_setup { 172 void *buf; 173 usb2_size_t size; 174 uint8_t usb2_speed; 175 uint8_t self_powered; 176 uint8_t bNumEndpoints; 177 uint8_t bInterfaceNumber; 178 uint8_t bAlternateSetting; 179 uint8_t bConfigurationValue; 180 usb2_error_t err; 181}; 182 183/* prototypes */ 184 185void usb2_bus_mem_flush_all(struct usb2_bus *bus, usb2_bus_mem_cb_t *cb); 186uint8_t usb2_bus_mem_alloc_all(struct usb2_bus *bus, bus_dma_tag_t dmat, usb2_bus_mem_cb_t *cb); 187void usb2_bus_mem_free_all(struct usb2_bus *bus, usb2_bus_mem_cb_t *cb); 188uint16_t usb2_isoc_time_expand(struct usb2_bus *bus, uint16_t isoc_time_curr); 189uint16_t usb2_fs_isoc_schedule_isoc_time_expand(struct usb2_device *udev, struct usb2_fs_isoc_schedule **pp_start, struct usb2_fs_isoc_schedule **pp_end, uint16_t isoc_time); 190uint8_t usb2_fs_isoc_schedule_alloc(struct usb2_fs_isoc_schedule *fss, uint8_t *pstart, uint16_t len); 191 192#endif /* _USB2_CONTROLLER_H_ */ 193